Changes between Version 7 and Version 8 of Processing/LidarCalibrationProcedure

Timestamp:

Apr 30, 2009, 4:09:49 PM (15 years ago)

Author:

mark1

Comment:

--

Processing/LidarCalibrationProcedure

@@ -116 +116 @@
  * Check these results and re-run using the full FOV (~45 degrees)
  * Check average dz is less than 1cm or so, and standard deviation <5cm in Terrascan control report. (also look at cross sections)
- * Then process the 4 high altitude flights in ALSPP and check in TerraScan (around nadir and swath edges)
+ * Then process the 4 high altitude flights in ALSPP and check in Terrascan (around nadir and swath edges)
  * Finally load in all flights into Terrascan (within a fence if memory issues) and check them (ideally along a stream because this has a “good” profile) Can use the travel path tool in Terrascan for comparing cross sections along a path. 
+-------
+== Final validation ==
+The final stage of the processing is tweaking the parameters and validating the calibration.
 
+1. Check the torsion and pitch slope
+ * To check the Torsion look at cross sections of high altitude cross flight. Flat roads and grassy areas are good. Look for “smiles” in the data. This can be done by looking at the centres of the edges of the overlapping area
+ * May also be able to do this by re-ordering points by elevation